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1-Bromo-2-ethynylbenzene

1-Bromo-2-ethynylbenzene Structure
1-Bromo-2-ethynylbenzene structure
CAS No.
766-46-1
Chemical Name:
1-Bromo-2-ethynylbenzene
Synonyms
2-BROMOPHENYLACETYLENE;DK893;o-Bromophenylacetylene;2'-Bromophenylacetylene;1-Bromo-2-ethynylbenzene;2-bromo-1-ethynylbenzene;2'-BROMOPHENYL ACETYLENE;2-Bromophenylacetylene 97%;1-Bromo-2-ethynylbenzene>Benzene, 1-broMo-2-ethynyl-
CBNumber:
CB7702495
Molecular Formula:
C8H5Br
Molecular Weight:
181.03
MDL Number:
MFCD01863358
MOL File:
766-46-1.mol
MSDS File:
SDS
Last updated:2026-09-12 18:55:05
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1-Bromo-2-ethynylbenzene Properties

Boiling point 92-93 °C20 mm Hg(lit.)
Density 1.443 g/mL at 25 °C(lit.)
refractive index n20/D 1.595(lit.)
Flash point 147 °F
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility Acetone, Dichloromethane, Ethyl Acetate, Hexane
form Oil
color Colourless
Stability Light and Temperature Sensitive.
InChI 1S/C8H5Br/c1-2-7-5-3-4-6-8(7)9/h1,3-6H
InChIKey RVDOYUFNRDGYGU-UHFFFAOYSA-N
SMILES Brc1ccccc1C#C
CAS DataBase Reference 766-46-1(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
RIDADR  NA 1993 / PGIII
WGK Germany  3
HS Code  2903998090
Storage Class 10 - Combustible liquids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

1-Bromo-2-ethynylbenzene price More Price(60)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 494178 1-Bromo-2-ethynylbenzene 95% 766-46-1 1g $101 2026-04-30 Buy
TCI Chemical B4608 1-Bromo-2-ethynylbenzene >98.0%(GC) 766-46-1 1g $120 2026-04-30 Buy
TCI Chemical B4608 1-Bromo-2-ethynylbenzene >98.0%(GC) 766-46-1 5g $477 2026-04-30 Buy
TRC TRC-B686430-500MG 2-Bromophenylacetylene 766-46-1 500mg $117 2026-06-03 Buy
TRC TRC-B686430-250MG 2-Bromophenylacetylene 766-46-1 250mg $91 2026-06-03 Buy
Product number Packaging Price Buy
494178 1g $101 Buy
B4608 1g $120 Buy
B4608 5g $477 Buy
TRC-B686430-500MG 500mg $117 Buy
TRC-B686430-250MG 250mg $91 Buy

1-Bromo-2-ethynylbenzene Chemical Properties,Uses,Production

Chemical Properties

Colourless Oil

Uses

1-Bromo-2-ethynylbenzene may be used in the synthesis of 1-(2-bromophenyl)-2-(dibenzo[b,d]thiophen-4-yl)ethanone.

Uses

Starting material for heterocyclotriynes, second-order nonlinear optical materials, and unsymmetrical 1,4-diarylbutadiynes

Synthesis Reference(s)

Tetrahedron Letters, 22, p. 2495, 1981 DOI: 10.1016/S0040-4039(01)92942-9

General Description

1-Bromo-2-ethynylbenzene (BEB) is a haloalkyne. It undergoes Sonogashira coupling with methyl 2-iodobenzoate to form bromo tolane derivative.

1-Bromo-2-ethynylbenzene synthesis

18982-54-2
766-46-1
Synthesis of 1-Bromo-2-ethynylbenzene from 2-Bromobenzyl alcohol

1-Bromo-2-ethynylbenzene Preparation Products And Raw materials

Raw materials

Benzene, 1-bromo-2-[(1Z)-2-bromoethenyl]- Benzenediazonium, 2-bromo-, tetrafluoroborate(1-) 1-broMo-2-(2,2-dibroMovinyl)benzene (2-Bromophenylethynyl)trimethylsilane Tributylstannylacetylene
2-Bromocinnamic acid Phenacyl Bromide 1-Bromo-2-iodobenzene 2-Bromobenzyl alcohol Dimethyl (1-Diazo-2-oxopropyl)phosphonate
Acetylene 2-Bromobenzaldehyde 1,2-Dibromobenzene

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Preparation Products

1-Ethynyl-2-phenylbenzene

1-Bromo-2-ethynylbenzene Suppliers

Global( 169)Suppliers
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Beijing HwrkChemical Technology Co., Ltd 89508211 18501085097 sales.bj@hwrkchemical.com China 9407 55
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
Shanghai Longsheng chemical Co.,Ltd. 58099637 13585536065 sales@shlschem.com China 9880 59
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Chemsky（shanghai）International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Supplier Advantage
J & K SCIENTIFIC LTD. 76
3B Pharmachem (Wuhan) International Co.,Ltd. 69
TCI (Shanghai) Development Co., Ltd. 81
Beijing HwrkChemical Technology Co., Ltd 55
Wuhan Chemwish Technology Co., Ltd 56
Beijing Ouhe Technology Co., Ltd 60
Shanghai Longsheng chemical Co.,Ltd. 59
Shanghai Hanhong Scientific Co.,Ltd. 64
Chemsky（shanghai）International Co.,Ltd. 50
Syntechem Co.,Ltd 57

View Lastest Price from 1-Bromo-2-ethynylbenzene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Bromophenylacetylene pictures 2026-09-11 2-Bromophenylacetylene
766-46-1
 $70.00-212.00 5g 0.97 25kg Shanghai UCHEM Inc.
1-Bromo-2-ethynylbenzene pictures 2026-09-02 1-Bromo-2-ethynylbenzene
766-46-1
 $5.00 1KG 99% Henan Fengda Chemical Co., Ltd
1-Bromo-2-ethynylbenzene pictures 2025-12-24 1-Bromo-2-ethynylbenzene
766-46-1
 1KG 99.0% 1000 tons Shaanxi Dideu Medichem Co. Ltd

1-Bromo-2-ethynylbenzene Spectrum

1-BROMO-2-ETHYNYLBENZENE(766-46-1)1HNMR1-BROMO-2-ETHYNYLBENZENE(766-46-1)FT-IR

766-46-1(1-Bromo-2-ethynylbenzene)Related Search:

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2'-BROMOPHENYL ACETYLENE Benzene, 1-broMo-2-ethynyl- 2-Bromophenylacetylene 97% 1-BroMo-2-ethynylbenzene 95% o-Bromophenylacetylene 2-bromo-1-ethynylbenzene 1-Bromo-2-ethynylbenzene> DK893 2'-Bromophenylacetylene 2-BROMOPHENYLACETYLENE 1-Bromo-2-ethynylbenzene 766-46-1 C8H5Br ARYL HALIDE Alkynyl Building Blocks Halogenated Hydrocarbons Organic Building Blocks Aromatic Halides (substituted) Aromatics Compounds Aromatics Alkynyl Halogenated Hydrocarbons Organic Building Blocks